UPG UB1290 12V 9Ah APC UPS Computer Back Up Power Battery - 2 Pack

Purchased these over two separate orders to replace the APCRBC109 battery packs on my APC 1250's.The original APC battery packs are glued together, which can be convenient, but I like these UB1290's because they are manufactured individually, and can be replaced one at a time if one develops a bad cell.Also, these fit my CyberPower 650's and 1450 models and work well in them, too. Items are as-described, new, and properly packaged by the seller, Battery Supersite.Hands-down, these are the best value (and currently best priced) replacement batteries to keep your UPS out of the landfill. Awesome.

I used these to replaced my batteries for APC BackUPS xs-1200. I only have had them for about 1 month and so far so good. I went with these batteries mainly because at the time I did not know the actual name of the batteries in the hardware until I peel off the APC stickers off the original batteries.I only knew the specification of power requirement at the time. Even though these are not the original brand the seem to work fine in my battery backup.Original brand batteries were the Vision CP1290 and the were great too. I had the for those for almost 10 years before they died on me.So it'll be interesting to see if these last just as long.

Purchased from First Web Sales. Item arrived fast, acceptably packed. Batteries appeared to be fully charged. Exactly as described.UB1290 12V 9Ah APC UPS Computer Back Up PowerI have a Cyberpower CP1200AVR. It is running like a charm. Power backup software reports 100% and 45 minutes backup time. I doubt that 45 minutes is accurate with the computer and monitor on it (reporting as a 50-60 watt load). See test below.This order includes ONLY the two batteries. You do not get other equipment, cables, connectors, etc.Note that in my unit the batteries go head to head, and the interfacing part is not included with these batteries.I removed the old batteries, attached via the interfacing part, pushed in the new batteries. (All done with the unit unplugged.)I then connected the batteries to the unit with the internal wire plug and the unit beeped to notify me that it was up.It came on fine without a plug in.Plugged the unit in and all was well. Attached the computer and monitor to BU power as well as other units to the non BU power.The unit passed tests of power failure.I then ran the computer with the unit unplugged after a full overnight of being plugged in. Both monitor and computer were on.After 45 minutes of this on battery only power, the battery started to do two-beep warning, indicating a prolonged power failure.(At this point the Power backup software reports 50% power and 24 minutes power remaining.)Obviously this is calibrating the Power backup software!After 80 minutes running from the UPS on battery only, it reported only 7 minutes power remaining (~15% remaining) since it was about 1 minute from auto-shut off, I returned power. However, the actual battery was not beeping with the continuous beep to indicate it was going to shut off...so there was probably much more time. the CP website estimates that my runtime for my UPS at 50 watts is 157 minutes, while at 100 watts is 60 minutes.I may test again later to see exactly how long it lasts before UPS shut down without the software guesstimated auto-shut down.I am very happy with the battery performance! I feel confident that I can weather a 60 minute+ event while still working at full tilt with computer, monitor, internet and wifi!I will write again if anything else needs reporting.Currentl

***EDIT: WARNING--THEY LEAK*** They lasted for two years. One set of batteries started leaking and dripped acid all over the inside of my UPS (ruining it) and out the bottom and onto my carpet. Yes..the acid will quickly melt though carpet. The other set is in a different BackUPS that stopped working, but the batteries themselves seem to be fine. NOTE: While one of my previous APC RBC-32 batteries did swell and break, it did not leak all over. To be more precise. . .I remember thinking it had leaked at first, but it must have just been a bit slimy. Because the gel did not technically leak and drip outside of the UPS. And I was able to clean-up the inside of the UPS with baking soda/water and eventually return it to service. What dripped out of my UPS with these batteries was the consistency of water. Regular battery acid. I thought these were filled with gel? I guess I was mistaken.I used these in my APC BackUPS BR/RS-800 units since I've ordered APC's overpriced crap-quality RBC32 rip-off batteries on multiple occasions and never had them last much more than one year. I installed these 10 1/2 months ago and no problems yet. Much lower price and the batteries just look nicer than the warped cruddy ones that APC charges 80 bucks for. Oh, and I should mention that the last one I got from APC swelled up and got stuck inside the backup unit...broke into pieces and what remained had to be forced out. I trust that these after market batteries will last better, but even if they don't they're not warped, they probably won't swell and break, they have a longer run-time, and they're half the price. Perfect.

I have an APC Smart UPS 1200XS that I bought years ago to protect my entertainment system. It turns out that APC fiddled with the model number and later units were renamed to the 1200RS. FInding batteries for the older 1200XS was confusing. I finally found these and they fit perfectly. You just undo the original stacked batteries and connect these instead. Physically they fit and work great. You DO need to reset the internal battery replacement date in order to stop the unit from beeping and claiming the batteries need to be replaced. The only way to do that is to load the APC Powerchute software on your laptop, plug in via the special APC USB adapter cable and using the Powerchute software update the battery replacement date. Its a hassle that APC made annoying complicated but what else can you do?